Annual report pursuant to Section 13 and 15(d)

Restructuring - (Schedule of Restructuring and Related Costs) (Details)

v3.7.0.1
Restructuring - (Schedule of Restructuring and Related Costs) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]      
Restructuring Reserve, Beginning Balance $ 622    
Restructuring charges 1,395 $ 3,375 $ 3,583
Cash payments (1,921)    
Restructuring Reserve, Ending Balance 96 622  
2014 Plan [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring Reserve, Beginning Balance 162    
Restructuring charges 30 2,356 $ 3,583
Cash payments (192)    
Restructuring Reserve, Ending Balance   162  
2015 Plan [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring Reserve, Beginning Balance 460    
Restructuring charges 1,365 1,019  
Cash payments (1,729)    
Restructuring Reserve, Ending Balance 96 $ 460  
Employee Severance [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 646    
Employee Severance [Member] | 2014 Plan [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 30    
Employee Severance [Member] | 2015 Plan [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 616    
Other Restructuring [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 749    
Other Restructuring [Member] | 2015 Plan [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges $ 749